Invention Grant
US08170417B2 Mechanism to detect an unstable wavelength channel and limit its impact on a ROADM network
有权
检测不稳定波长通道并限制其对ROADM网络的影响的机制
- Patent Title: Mechanism to detect an unstable wavelength channel and limit its impact on a ROADM network
- Patent Title (中): 检测不稳定波长通道并限制其对ROADM网络的影响的机制
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Application No.: US12322734Application Date: 2009-02-06
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Publication No.: US08170417B2Publication Date: 2012-05-01
- Inventor: Qingyun Liu , Philip Wisseman
- Applicant: Qingyun Liu , Philip Wisseman
- Applicant Address: US GA Atlanta
- Assignee: AT&T Intellectual Property I, L.P.
- Current Assignee: AT&T Intellectual Property I, L.P.
- Current Assignee Address: US GA Atlanta
- Main IPC: H04J14/02
- IPC: H04J14/02 ; H04B10/08
Abstract:
A system and method for limiting the impact of an unstable wavelength on other wavelengths in a reconfigurable optical add/drop multiplexer (ROADM) network are disclosed. The method generally comprises measuring optical channel power at prescribed time intervals; for each measurement of channel power falling outside a predefined threshold, recording a threshold crossing event; comparing the recorded threshold crossing events to stored criteria indicative of an unstable wavelength channel; and removing an unstable wavelength from the ROADM network if the threshold crossing events exceed the stored criteria.
Public/Granted literature
- US20100202777A1 Mechanism to dectect an unstable wavelength channel and limit its impact on a ROADM network Public/Granted day:2010-08-12
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